FPS Meter benchmark allows you to display FPS (Frames Per Second) in any game.
FPS Meter displays FPS (Frames per second) above all other windows in any game or application. This allows you to benchmark your real device's performance.
DOES NOT WORK ON ANDROID 6+
NOTE:If you have a non-ROOTed device, you need to connect your device to a desktop PC to activate FPS Meter. To do this follow the instructions on http://fpsmeter.github.io .